35790 Results for: "Capitol Vial Specimen Collection"

Supplier: Adipogen

Potent cell permeable and selective inhibitor of phosphatidyl-inositol 3-kinase (PI3K). Blocks class I, class II and class III PI3Ks, including some downstream targets. Blocks class I PI3K persistently and class III PI3K transiently. Induces autophagy under nutrient-rich conditions and inhibits starvation-induced autophagy due to differential effects on class I versus class III PI3 kinase. Shows some limited Vps34 preference in vitro compared to PtdIns3Kgamma. However, it is typically employed in cellular studies at a concentration of 10 mM, which can inhibit all PtdIns3Ks. Can target other kinases and affect other cellular processes, such as glycogen metabolism, lysosomal acidification, endocytosis and mitochondrial permeability transition. Anticancer compound. Neuroprotective. PKA-activation dependent lipolytic agent. Enhances ATGL-dependent hydrolysis of triacylglycerols.

Supplier: Adipogen

Rhodamine 6G is a highly fluorescent hydrophilic pH-sensitive dye. It is often used as a tracer dye within water to determine the rate and direction of flow and transport. Rhodamine dyes are used extensively in biotechnology applications such as fluorescence microscopy, flow cytometry, fluorescence correlation spectroscopy and ELISA. The dye has a remarkably high photostability and high fluorescence quantum yield. Used as a laser dye and potential mitochondrial probe. The lasing range of the dye is 555 to 585 nm with a maximum at 566 nm. Useful in Pgp efflux assays and has been used to characterize kinetics of MRP1-mediated efflux. Spectral data: lambdaex 528 nm| lambdaem 551 nm (in MeOH).

Supplier: C&G Containers

JUG NM 38-400WHT SLD CAP HDPE NAT 1GAL

Supplier: Adipogen

The membrane-permeant dual-emission potential-sensitive JC-1 dye is widely used in apoptosis studies to monitor mitochondrial health by flow cytometry, fluorescence microscopy and in microplate-based fluorescent assays. JC-1 dye can be used as an indicator of mitochondrial membrane potential in a variety of cell types, including myocytes and neurons, as well as in intact tissues and isolated mitochondria. JC-1 accumulates in mitochondria, selectively generating an orange J-aggregate emission profile (590 nm) in healthy cells. After cell injury, as membrane potential decreases, JC-1 monomers are generated, resulting in a shift to green emission (529 nm). The principal advantage of JC-1 relative to other commonly employed fluorescent probes of mitochondrial membrane potential is that it allows qualitative visualization, considering the shift from orange to green fluorescence emission, and quantitative detection, considering the fluorescence intensity ratio.

Supplier: ROEMER INDUSTRIES, INC.

PharmaRoam15 is a medical-grade, countertop refrigerator or freezer that has optional accessories such as battery power and data management. Designed to transport vaccines and pharmaceuticals, units function as refrigerators or freezers down to 1 °C (optional -20 °C with refrigerant change) and run on a battery while on the move. These units can be secured with a padlock, have handles on the sides and can be stacked with stacking corners. Excellent for disaster preparedness to store temperature sensitive products when the electrical power supply is not reliable or dependable.

Supplier: G-Biosciences

Inhibits inflammatory cytokine production in human peripheral blood mononuclear cells (PBMC’s) without causing immunosuppression: IC50’s = 11 nM (TNF-α), 5.9 nM (IL-1β), 8.8 nM (IL-6), 7.3 nM (IL-8), and 9.1 nM (IL-10).1 It displayed efficacy in a mouse model of septic shock.2 JTE-607 also showed inhibitory activity against acute myelogenous leukemia cell lines.3,4 Recently, the mechanism of action of JTE-607 (a pro-drug, with the active species being the free acid) has been found to be inhibition of pre-messenger RNA endonuclease Cleavage and Polyadenylation Specificity Factor 3 (CPSF3).5,6 This prevents release of newly synthesized mRNA’s resulting in read-through transcription and the formation of DNA-RNA hybrid R-loop structures. Transcripts down-regulated by JTE-607 were related to DNA damage-based phenotype.

Supplier: G-Biosciences

Modulator of the cullin ring ligase 4-cereblon E3 ubiquitin ligase complex that specifically targets GSPT1 (G1 to S phase transition 1; EC50=9 nM; also known as eRF3a) instead of Ikaros (IKZF1) and Aiolos (IKZF3).1 It rapidly induced apoptosis and reduced leukemia engraftment and leukemia stem cells across a wide spectrum of acute myeloid leukemia xenograft patient samples including refractory/relapsed cases.2 The anti-AML activity of CC-90009 was shown to be regulated by multiple signaling pathways including the ILF/ILF3 complex, mTOR, and the integrated stress response. CC-90009 was able to potentiate premature termination codon (PTC; 11% of all genetic lesions in patients with inherited diseases contain this type of mutation) readthrough by aminoglycosides via degradation of eukaryotic release factors 1 (eRF1) and 3 (eRF3a/b) in various heritable disease models.3 It was also able to enhance aminoglycoside PTC readthrough of the mutated retinoblastoma (RB1) gene in MDA-MB-436 breast carcinoma cells and SW1783 astrocytoma cells.

Supplier: Fujifilm Irvine Scientific

Cytokines for the differentation of mouse monycyte-derived dendritic cells. Dendritic cells are an important type of immune cell that function to activate T and B cells via their role as an antigen presenting cells. Monocytes isolated from bone marrow can be differentiated to immature dendritic cells (iDCs) through culturing in the presence of interleukin 4 (IL-4) and granulocyte-macrophage colony stimulating factor (GM-CSF). The characteristics of monocyte-derived iDCs are detectable after culture with IL-4/GM-CSF and include: the down regulation of CD14 surface expression, an increase in dextran uptake and an increased response to MIP-1α. Subsequent culturing with pro-inflammatory cytokines (such as TNF-α, IL-1β, and IL-6) can further differentiate the iDCs into mature dendritic cells (mDCs) that have full T cell stimulating capacity. This bundle includes 1x 100 μg of Recombinant Mouse IL-4 and 1x 100 μg of Recombinant Mouse GM-CSF.

Supplier: Adipogen

c-Met kinase is the receptor for hepatocyte growth factor (HGFR). Primarily expressed on epithelial and mesenchymal cells its normal function is associated with wound healing, liver regeneration and embryo development. However, dysregulation of c-Met through overexpression, gene amplification, mutation or a ligand-dependent autocrine/paracrine loop is associated with tumorigenesis. c-Met dysregulation in human cancer patients is typically associated with a poor prognosis, aggressive disease, increased metastasis and shortened patient survival. Targeting the hepatocyte growth factor/c-Met signalling pathway as a means of cancer therapy has, therefore, become increasingly popular with a number of different therapeutic approaches undergoing clinical trials. AMG-51 represents a modified novel pyrimidone 7 compound that demonstates good effectiveness against c-Met with few off target effects at set concentrations. AMG-51 shows the enzyme selectivity of c-Met with a Ki of 4.9nM, with off target proteins such as IGFR with a Ki of 22nM, Ron with a Ki of 28nM, and KDR with Ki of 139nM.

Supplier: Adipogen

The BCR-ABL oncogene triggers intracellular signaling, activating multiple transduction cascades, promoting the growth, proliferation and survival of hematopoietic cells. BCR-ABL plays a role in defective DNA repair, alteration of cellular adhesion and inhibition of apoptosis. Degregulated BCR-ABL tyrosine kinase activity is the molecular marker for CML. Inhibiting BCR-ABL tyrosine kinase activity leads to the induction of apoptosis and inhibits cellular proliferation in vitro and there are various BCR-ABL isoforms with differing activity levels as well. Dasatinib (BMS-354825, Sprycel®) is a potent multi-target kinase inhibitor of BCR-ABL. Dasatiinib performs better against ABL kinase than earlier drugs such as imatinib, and Dasatinib also is effective against SRC family of kinases, and other receptor kinases such as EPHA2, PDGFR, and c-Kit. Dasatinib's inhibiting potential against Src family kinase members is greater (IC(50) 0.5nM) than its inhibitory activity against ABL (1nM).

Supplier: Adipogen

Toll-like receptor 4 (TLR4) activator. Activates TLR4 but does not activate TLR2 even at high concentrations. Defined structure of MPLA. Synthetic lipid A is structurally very similar to natural MPLA but does not exist in nature.
Formula: C96H184N3O22P
MW: 1763.47
CAS: 1246298-63-4
Source/Host Chemicals: Synthetic. Does not contain RNA, DNA or protein fragments.
Purity: No detectable TLR4 independent activity: standardised TLR4-specific agonist.
Appearance: Colourless opaque aqueous solution.
Formulation: Liquid.
Concentration: 0.5mg/ml stabilized in sterile, double-distilled water (ddWater), without any additives.
Other Product Data: Preparation of Stock Solution: To yield a 50µg/ml (500-50x) stock solution add 100µl of MPLA to 900µl endotoxin-free and sterile ddWater (Cat. No.: IAX-900-002) (not PBS) and mix well.

Supplier: Ohaus

Vortex Genie® Mixers are available in multiple models and with a vast array of available platforms and accessories.

Supplier: MP Biomedicals

Thrombin is the final coagulation protease in regard to hemostasis, promoting both procoagulant and anticoagulant effects. It is a lyophilized powder containing sucrose, sodium chloride and Tris. The predominant form of thrombin in vivo is the zymogen, prothrombin (factor II), which is produced in the liver. The concentration of prothrombin in normal human plasma is 5–10 mg/dL. Prothrombin is a glycoprotein with a glycan content of ~12%.

Supplier: Adipogen

Toll-like receptor (TLR) 3 is an endosomal TLR that mediates immune responses against viral infections upon activation by its ligand double-stranded RNA, a replication intermediate of most viruses. TLR3 is expressed widely in the body and activates both the innate and adaptive immune systems. Toll-like receptor 3 (TLR3), melanoma differentiation-associated gene 5 (MDA5), and retinoic acid-inducible gene-I (RIG-I), all sensors of double-stranded RNA (dsRNA) are potent inducers of antiviral activity. dsRNA sensor activation -e.g. by poly (I:C)- induces pro-inflammatory TNF-alpha and antiviral IFN-beta, but can also enhance the expression of pro-apoptotic proteins. Recently, poly (I:C)-induced cell death recently gained considerable attention as a tool to study the 'Ripoptosome' or 'Necrosome' complex, a novel intracellular signaling complex, thought to induce regulated necrosis, also called 'Necroptosis'.

Supplier: Adipogen

Non-phorbol type tumor promoter. Reversible, potent and selective serine threonine protein phosphatase inhibitor. PP2A (IC50=0.2-1nM), PP1 (IC50=3-15nM), PP2B (IC50=1µM). Does not inhibit PP2C. Stimulates intracellular protein phosphorylation. Useful tool for studying cellular processes that are regulated by phosphorylation. Does not affect activity of acid phosphatase, alkaline phosphatase and tyrosine phosphatase. Mimics the effects of insulin. Activates atypical protein kinase C (zeta/lambda) in 3T3/L1 adipocytes. Enhances transmitter release at neuromuscular junctions. Apoptosis inhibitor. Induces apoptosis in human breast carcinoma cells (MB-231 and MCF-7) and in myeloid cells. Neurotoxic. Used to study various cellular processes including cell cycle, apoptosis, nitric oxide metabolism and calcium signaling. Stimulates cell motility, loss of stabilization of focal adhesions and a consequent loss of cytoskeletal organization.

Supplier: Justrite

WASH TANK BASKET SELF CLOSE STL RED 6GAL

Supplier: Fujifilm Irvine Scientific

Interleukin 13 (IL-13) is a cytokine secreted from type 2 T helper (Th2) cells. IL-13 has overlapping functions with interleukin 4 (IL-4), including the induction of immunoglobulin E (IgE) secretion from B cells, and the inhibition of interleukin 1 beta (IL-1β), tumor necrosis factor alpha (TNF-α), interleukin 8 (IL-8), and interleukin 6 (IL-6) inflammatory cytokine expression. IL-13 also regulates immune cell inflammation in response to the pathophysiological changes of surrounding non-immune cells. The IL-13 receptor consists of the IL-4Ra and IL-13Ra1 subunits. IL-13 can also bind the IL-13Ra2 receptor with high affinity. IL-13 functions are mediated through the JAK/STAT signaling pathway. Human and mouse IL-13 are cross-reactive.

Supplier: Adipogen

The Hoechst stains are a family of fluorescent stains for labeling DNA in fluorescence microscopy. The blue fluorescent Hoechst dye is a cell permeable nucleic acid stain that has multiple applications, including sensitive detection of DNA in the presence of RNA in agarose gels, automated DNA determination, sensitive determination of cell number and chromosome sorting. Useful vital stain for the flow cytometric recognition of DNA damage and other viability measurements by monitoring the emission spectral shifts of the dyes. Because this fluorescent stain labels DNA, it can also be used to visualize nuclei and mitochondria. Hoechst 34580 can be excited by violet laser at 405 nm, and emit blue/cyan fluorescence light around an emission maximum at ~440 nm. It is cell-permeable and an excellent tool for flow cytometry studies.

Supplier: Stemcell Technologies

Brain-derived neurotrophic factor (BDNF), like nerve growth factor (NGF), neurotrophin-3 (NT-3), and neurotrophin-4 (NT-4), is a member of the NGF family of neurotrophins, which are required for the differentiation and survival of specific neuronal subpopulations in both the central and the peripheral nervous systems (Minichiello and Klein; Minichiello et al.). BDNF binds with high affinity to the tropomyosin receptor kinase B (TrkB), and activates AKT and ERK pathways (Mattson et al.). It is expressed in the hippocampus, cortex, and synapses of the basal forebrain. BDNF acts as a survival factor for human embryonic stem cells when plated on either feeder cells or Corning® Matrigel® (Pyle et al.). BDNF regulates synaptic transmission and plasticity at adult synapses in the central nervous system, and contributes to adaptive neuronal responses including long-term potentiation, long-term depression, certain forms of short-term synaptic plasticity, and homeostatic regulation of neuronal excitability (Reichardt). It also has a role in neurogenesis by promoting survival and growth of dorsal root ganglion cells, and hippocampal and cortical neurons (Binder and Scharfman). BDNF, together with glial cell line-derived neurotrophic factor (GDNF) and other supplements, is commonly used to differentiate human pluripotent stem cell (hPSC)-derived neural progenitor cells into neurons (Brafman).

Supplier: Stemcell Technologies

A cytokine belonging to the type 1 interferon family, Interferon beta (IFN beta) binds IFN alpha/beta receptors (IFNAR) that activate tyrosine kinases and initiate the interferon-induced Jak-STAT signaling pathway, which modulates many key immune processes (Smieja et al.). In an experimental model involving cardiac fibroblasts isolated from rats, IFN beta was found to induce both pro- and anti-inflammatory cytokines production by activating different STAT proteins (Bolivar et al.). The anti-inflammatory effects of IFN beta have been studied in the context of autoimmune disorders, and there are currently multiple approved IFN beta drugs for treatment of relapsing forms of multiple sclerosis (Filipi and Jack). IFN beta is produced by immune cells, including macrophages, and non-immune cells, such as fibroblasts and epithelial cells (Ivashkiv and Donalin). The crystal structure of IFN beta shares characteristics with other type I interferons. It comprises five alpha-helices with four of them forming a helix bundle, and one long and three shorter loops connecting the helices (Karpusas et al.). For consistency and reproducibility across your applications, interferon alpha 1 from STEMCELL comes lyophilized with ≥ 87% purity, specific activity EC50 ≤18 pg/mL, and LAL analysis verification ensuring endotoxin levels are ≤1.0 EU/μg protein.

Supplier: Stemcell Technologies

Vascular endothelial growth factor (VEGF) is a heparin-binding homodimeric glycoprotein involved in vasculogenesis and angiogenesis. VEGF binds to FLT1 (VEGFR-1) and KDR (VEGFR-2), and activates Raf/MEK/ERK and PI3K/AKT pathways (Ferrara et al.). VEGF exists in multiple isoforms that result from alternative splicing of VEGF mRNA in the terminal exon. Proximal splice-site selection in exon 8 results in pro-angiogenic VEGFxxx isoforms (xxx is the number of amino acids), whereas distal splice-site selection results in anti-angiogenic VEGFxxxb isoforms (Nowak et al.). VEGF plays an important role in neurogenesis both in vitro and in vivo (Storkebaum et al.). It has neurotrophic effects on neurons of the central nervous system, and it promotes growth and survival of dopaminergic neurons and astrocytes. VEGF also promotes growth and survival of vascular endothelial cells, monocyte chemotaxis, and colony formation by granulocyte-macrophage progenitor cells (Ferrara et al.). Various splice variants of VEGF exist, with different functions. For example, it has been shown that VEGF isoform VEGF-164(165) and not VEGF-120(121) induces inflammation, stimulates intracellular adhesion molecule (ICAM)-1 expression on endothelial cells, and induces chemotaxis of monocytes (Usui et al.).

Supplier: Stemcell Technologies

Macrophage colony-stimulating factor (M-CSF) is a homodimeric glycoprotein growth factor that regulates proliferation and differentiation of myeloid hematopoietic progenitors to mononuclear phagocytic cell lineages, including monocytes, macrophages, and osteoclasts. M-CSF is a crucial factor for the development of tissue-resident macrophages in most tissues (Ginhoux andamp; Jung). It is required for the maturation and activation of monocytes and macrophages, and regulates inflammatory responses in conjunction with other stimuli such as IFN-γ, LPS, and IL-4 (Murray et al.). M-CSF is also required for bone resorption by osteoclasts, and is involved in the development and regulation of placenta, mammary gland, and brain. M-CSF is produced by monocytes, fibroblasts, osteoclasts, stromal cells, endothelial cells, and tumor cells (Chockalingam andamp; Ghosh). M-CSF exerts its biological effects by signaling through a receptor tyrosine kinase (CSF-1R or M-CSF-R) encoded by the c-fms proto-oncogene (Hamilton). CSF-1R shares similar structural features with other growth factor receptors, including the stem cell factor (SCF) receptor, platelet-derived growth factor receptor (PDGF-R), and Flt3/Flk-2 receptor tyrosine kinase. Stimulation of the CSF-1R upon binding to M-CSF activates MAPK, PI3K, and PLCγ signaling pathways (Chockalingam andamp; Ghosh). Human and mouse M-CSF sequences are highly conserved both at nucleotide and amino acid levels (80% homology; DeLamarter et al.). This product is animal component-free.

Supplier: Enzo Life Sciences

Fastest procedure available to safely isolate DNA from plasma/serum.

Supplier: DRG International

An enzyme immunoassay for the quantitative measurement of total 25-OH Vitamin D (Vitamin D2 and Vitamin D3) in serum and plasma.

Supplier: Adipogen

JC-10 is superior analog of JC-1, useful for determining mitochondrial membrane potential (MMP) in cells by flow cytometry, fluorescence microscopy and in microplate-based fluorescent assays. JC-10 is a cationic, lipophilic dye that accumulates in mitochondria of cells with a polarized mitochondrial membrane, selectively generating an orange J-aggregate emission profile (lambdaex = 540 nm/lambdaem = 590 nm) in healthy cells. Upon cell injury or cell death, as membrane potential decreases, which results in the failure to retain JC-10 aggregates in the mitochondria and JC-10 monomers are generated resulting in a shift to green emission (lambdaex = 490 nm/lambdaem = 525 nm). JC-10 shows improved solubility compared to JC-1 in aqueous media and an ability to detect subtler changes in mitochondrial membrane potential loss. JC-10 allows for qualitative visualization (shift from orange to green fluorescence) and quantitative detection (fluorescence intensity ratio) of mitochondrial membrane potential changes. Wavelength Maxima: lambdaex = 510 nm | lambdaem = 525 nm.

Supplier: Adipogen

Biotin derivative. Substrate of the horseradish peroxidase enzyme and used as a reagent to amplify immunohistochemical signals. It is based on the HRP-catalyzed deposition of tyramide conjugates (such as biotinyl-tyramide) on a solid phase. Subsequent reaction with streptavidin fluorophore results in the localization of the fluorophore at the site of tyramide deposition. This fluorescence-based tyramide signal amplification (TSA) has been widely used in immunohistochemistry, immunohistochemistry, immunoelectron microscopy, fluorescent in situ hybridization (FISH) and fluorescence ELISA. The TSA method has been reported to increase the detection sensitivity up to 100-fold as compared with conventional avidin–biotinylated enzyme complex procedures. It can be used together with both chromogenic and fluorescence visualization methods. It can be added to any other standard IHC protocol and reduces the use of other reagents; improves signal to noise by reducing the titer of other reagents in the assay protocol and enables multi-target detection in both IHC and (F)ISH applications.

Supplier: Thermo Fisher Scientific

Reliably measure pH, mV, ORP, and temperature with the Orion™ Star™ A211 pH Benchtop Meter for advanced lab analysis and printer or computer interfacing.

Supplier: Stemcell Technologies

Trigger a variety of immunological responses with E. coli Lipopolysaccharide O55:B5 (S-form), a lipopolysaccharide (LPS) derived from the O55:B5 serotype of the Gram-negative bacteria and nbsp Escherichia coli. Composed of a lipid A, a core oligosaccharide, and an O antigen, LPS are glycolipid constituents that reside on the outer membranes of gram-negative bacteria (Kitchens RL et al.). LPS protects bacteria against bile salts and lipophilic antibiotics by maintaining the outer integrity of the cell membrane (Bäckhed F et al.). E. coli lipopolysaccharide O55:B5 (S-form), in particular, is predominantly recognized by toll-like receptor 4 (TLR4), which leads to the activation of NF-κβ, a protein complex which plays a key role in regulating immune response (Kuzmich N et al.). Activation of NF-κβ can trigger increased production of pro-inflammatory cytokines IL-1 and TNF-α by macrophages (Matuschak GM et al.). This LPS can also interact with CD14 to activate phospholipase Cγ2 and kinases of the Src family, trigger influxes of extracellular Ca2+, as well as calcineurin-dependent translocation of the nuclear factor of activated T cells (NFAT) family of transcription factors (Li CC et al.). When added to ImmunoCult™-SF macrophage medium (Catalog #10961), stimulation with lipopolysaccharide from E. coli (O55:B5) and IFN-γ supports the polarization to M1 (classically activated) macrophages. Warning: This product is highly pyrogenic. Avoid all means by which the product may enter the bloodstream.

Supplier: G-Biosciences

G-Biosciences' Yeast Geno-DNA-Template™ extraction kit isolates high quality genomic DNA from yeast cultures

Supplier: Stemcell Technologies

Fibroblast growth factor acidic (FGF-acidic), also known as FGF-1, is a potent activator of DNA synthesis, cell proliferation, and chemotaxis and is known to play numerous roles in development, regeneration, and angiogenesis (Galzie et al.; Jaye et al.; Presta et al.). FGF-acidic is produced by multiple cell types and is capable of activating all cells of mesodermal origin and many cells of neuroectodermal, ectodermal, and endodermal origin. It is found in large quantities in the brain, but is also expressed in hepatocytes, vascular smooth muscle cells, neurons of the central nervous system, skeletal muscle cells, fibroblasts, keratinocytes, endothelial cells, intestinal columnar epithelial cells, and pituitary basophils and acidophils. FGF-acidic is secreted as a disulfide-linked homodimer and is stored in complex with heparan sulfate, a requirement for its interaction with FGF receptors (Guerrini et al.; Mohammadi et al.). Internalized FGF-acidic signals via protein kinase C and promotes cell survival by inhibiting p53 and proapoptotic signaling (Bouleau et al.). This product is animal component-free.